ApplicationDevelopment for Mobile andUbiquitousComputing Seminar ... · Dr. Thomas Springer Slide...
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Department of Computer Science Institute for System Architecture, Chair for Computer Networks Dr. Ing. Thomas Springer Technische Universität Dresden Chair of Computer Networks Application Development for Mobile and Ubiquitous Computing Seminar Introduction
Transcript of ApplicationDevelopment for Mobile andUbiquitousComputing Seminar ... · Dr. Thomas Springer Slide...
Department of Computer Science Institute for System Architecture, Chair for Computer Networks
Dr. Ing. Thomas SpringerTechnische Universität Dresden
Chair of Computer Networks
Application Development forMobile and Ubiquitous Computing
Seminar Introduction
Slide 2Dr. Thomas Springer
Basic Idea
§ To implement your first app§ To familiarize with one of the popular implementation
platforms for Mobile and Ubiquitious Computing§ Design concrete mechanisms to adapt your App
according to some relevant context§ It will help you to understand basic idea of this course§ These concepts are one of the basic parts of the exam
Application Development for Mobile and Ubiquitous Computing - Seminar Introduction
Slide 3Dr. Thomas Springer
Organization
§ You should work in groups of 2 students!!!§ You have to define your own app idea
• Define an application scenario from the domain of mobile andubiquitous computing
• Select a mobile device platform for implementation• Develop a concept for adapting your App
§ First presentation:• You should present your task description and technology
selection (03.11.2017).§ Adaptation concept presentation
• You should present at least two concrete mechanisms to adaptyour App and how they are controlled by particular contextinformation (15.12.2017)
• Deadline for slide submission is 08.12.2016§ Final presentation
• You should present your adaptation concept and final results(26.01.2018)
Application Development for Mobile and Ubiquitous Computing - Seminar Introduction
Slide 4Dr. Thomas Springer
First Presentation
§ Please prepare a presentation for 10 minutes!!!!
§ First presentation should include• present the application scenario in detail• show use cases, e.g. a mockup!!!• identify in detail the challenges of mobile computing you
want to tackle• define the technologies you intent to use• propose an architecture• work plan
Application Development for Mobile and Ubiquitous Computing - Seminar Introduction
Slide 5Dr. Thomas Springer
Presentation of Adaptation concepts
§ Please prepare a presentation for 10 minutes!!!!
§ Adaptation concept presentation should include:• A set of concrete context features you capture to
control your adaptation• The description of at least 2 concrete adaptation
mechanisms for your App• The method to map your considered context features
to parameters for controlling your adaptationmechanisms
• The detailed architecture of your App• The technologies for implementing all conponents of
your App
Application Development for Mobile and Ubiquitous Computing - Seminar Introduction
Slide 6Dr. Thomas Springer
Final Presentation
§ Please prepare a presentation for 10 minutes!!!!
§ Final presentation should include• Present the application scenario with use cases,
screenshots, a video or the running application• Describe the final architecture, components and
interaction between components• Describe the technologies adopted for each component• Discuss in detail the challenges of mobile computing you
have tackledo What adaptation mechanisms have been usedo What context information has been involved
• Discuss open issues and lessons learned
Application Development for Mobile and Ubiquitous Computing - Seminar Introduction
Slide 7Dr. Thomas Springer
Submission and Finalization
§ Submit your presentations no later than• First presentation – 02.11.2017• Adaptation concept presentation - 08.12.2017• Final presentation – 25.01.2018
§ Submission is by sending the slides by email to• [email protected]• Name document groupXX.pdf• Mail subject: [ADMUC17]
§ A colloquium will be held based on individual appointments with each team at the end of the term which includes:• presenting the running application• explaining the project• discussing adaptation mechanisms, used context and further
lecture content considered during the development of the App
Application Development for Mobile and Ubiquitous Computing - Seminar Introduction
Slide 8Dr. Thomas Springer
Summary
§ You can use the whole term to fulfill the tasks§ Projects are compulsary for all students§ Don`t miss deadlines for slide submission
§ Auditorium for discussions
§ Email to send presentations and solution is: • [email protected]§ Mail subject: [ADMUC17]
§ Project state and results are shown on lecture web page• please refer to „Seminar task list“
Application Development for Mobile and Ubiquitous Computing - Seminar Introduction
Slide 9Dr. Thomas Springer
HOW TO DEFINE YOUR SEMINAR TASK?
Application Development for Mobile and Ubiquitous Computing - Seminar Introduction
Slide 10Dr. Thomas Springer
Think your own task
§ select an application scenario relevant for Mobile and Ubiquitous Computing
§ scenario should tackle at least one of the challenges mentioned in the first lecture
§ scenario should include concrete mechanisms for context awareness and adaptation
§ could be a stand-alone App on a mobile device or a distributed application with server component
§ implementation should be based on a mobile device platform • Android• iOS• Cross-Platform tool
Application Development for Mobile and Ubiquitous Computing - Seminar Introduction
Slide 11Dr. Thomas Springer
EXAMPLEFahrtfinder, a carpooling App
Application Development for Mobile and Ubiquitous Computing - Seminar Introduction
Slide 12Dr. Thomas Springer
App idea
§ On March 27th, carpooling.com GmbH (who runs amongstothers market leader mitfahrgelegenheit.de) introduced11 % fee
§ in response, many free websites gained market share§ problems: many websites ⇒ user has to search each site§ solution: meta search engine for carpooling web sites
Application Development for Mobile and Ubiquitous Computing - Seminar Introduction
Slide 13Dr. Thomas Springer
Mockups
Application Development for Mobile and Ubiquitous Computing - Seminar Introduction
Slide 14Dr. Thomas Springer
Use Cases
Application Development for Mobile and Ubiquitous Computing - Seminar Introduction
Slide 15Dr. Thomas Springer
Challenges
§ Connectivity Challenge• Reduce the amount of data to be transferred via the
wireless link (use server component for search, processing and aggregation of lift data to reduce networktraffic over wireless link)
§ Context: • Detect type and speed of network
§ Adaptation:• Introduce proxy on server side for data fetching and
preprocessing• Reduce quality and size of images• Lazy evaluation on client side (text first, images later)
Application Development for Mobile and Ubiquitous Computing - Seminar Introduction
Slide 16Dr. Thomas Springer
Challenges
§ Offline Challenge• Provide some functionality when offline (e.g.
bookmarked lifts, last queries, booked lifts in calendar§ Context:
• Detect if your App is online or offline§ Adaptation:
• Caching of Data• Use cached data if application is offline, Update cache if
connectivity is good• Persistently store information from cache
Application Development for Mobile and Ubiquitous Computing - Seminar Introduction
Slide 17Dr. Thomas Springer
Challenges
§ Usability Challenge• Present lift information properly on iPhone and iPad
display (iPhone 3,5 inch and iPhone 4 inch screen) andiPad screens
• Minimize effort for user input§ Context:
• Detect screen size and device type• Detect user location with GPS
§ Adaptation:• Adapt layout for iPhone and iPad• Auto fill „Start field“ by using GPS location• Cache search queries
Application Development for Mobile and Ubiquitous Computing - Seminar Introduction
Slide 18Dr. Thomas Springer
Technologies
§ Client:• iOS on iPhone• (some additional HTML parsing on external websites)• we will keep to fahrtfinder’s corporate design and style
guide• GPS for location tracking• SWRevealViewController library for navigation
§ Server:• provided by fahrtfinder.net, they offer a JSON API
Application Development for Mobile and Ubiquitous Computing - Seminar Introduction
Slide 19Dr. Thomas Springer
Architecture
Application Development for Mobile and Ubiquitous Computing - Seminar Introduction
Slide 20Dr. Thomas Springer
Work plan
§ 21.10.2013: Begin of iOS / Objective-C tutorial (weekly until 03.02.2014)
§ 24.10.2013: Begin of implementation§ 01.11.2013: First presentation
§ 21.11.2013: First prototype§ 20.12.2013: Second presentation
§ 20.12.2013: Begin of testing on real devices, bugfixing on iPhone 4S / 5
§ 31.01.2014: Final presentation§ 31.01.2014: Launch in the App Store
Application Development for Mobile and Ubiquitous Computing - Seminar Introduction
• think about teamorganisation
• assign responsibilities in team
• make yourself familarwith platform anddevelopment tools
• think about context andadaptation
• start early withimplementation
• develop agile -> featureplanning and peridicreleases of running code
• plan time for testing andbugfixing
• deploy and test with real devices
Slide 21Dr. Thomas Springer
Further Examples
§ MusIQ• Simple music player with
basic functionality• Application fetches additional
information (video, biography, discography, nearby events) according to currently playing song and user location
§ CarSurfing• Supports matching between
hitch hikers and car drivers• uses direction and GPS
information• visualization on Google Maps• integration of Facebook to
increase security
Application Development for Mobile and Ubiquitous Computing - Seminar Introduction
Slide 22Dr. Thomas Springer
Further Examples
§ Lunchbox• ultimate mensa guide
providing information about the meals at the refectories including students ratings
• data provided at server, scraped from Studentenwerk page
§ MusicMap• find the places where your
favourit music is played• integrates LastFM• uses location and genre to
cluster users• visualization on Google
Maps
Application Development for Mobile and Ubiquitous Computing - Seminar Introduction
